EXPERIMENTAL AND COMPUTATIONAL STUDY ON BIOFUEL￾INDUCED CORROSION IN AUTOMOTIVE FUEL TANKS

The present research investigates the corrosion behavior of carbon steel at ten different temperatures, including
50 °C, 60 °C, and ambient temperature. Immersion tests were conducted for 720 hours in pure diesel, 50%
biodiesel-diesel blend, and pure biodiesel. After the exposure period, corrosion performance was evaluated by
measuring weight loss of the metal samples. Additionally, the acidity and oxidation behavior of the biofuels were
analyzed using microscopic techniques and computational fluid dynamics (CFD) oxidation analysis, respectively.
The fuel tank surface was examined using optical microscopy, scanning electron microscopy (SEM), and energy￾dispersive spectroscopy (EDS). The results indicate that corrosion of mild steel increases with rising temperature,
while the influence of water content and oxidation products on corrosion was assessed through a combination of
experimental observations and simulation studies.